A new record for the world’s largest polished lab grown diamond has been set by Indian company Ethereal Green Diamond LLP, with a 30.18-carat stone.
It snatches the title from Greenlab, another Indian company, which announced just over two weeks ago that it had produced a marquise step cut 27.27-carat diamond.
Both stones were certified by IGI. The 30.18-carat emerald-cut gem, called Pride of India, was graded as H color, VS2 clarity.
It was grown in four weeks by the CVD (chemical vapor deposition) process, and is currently on display at the JCK show (booth 8135).
The record for a polished lab grown was also broken in February, with a 16.41-carat princess-cut diamond (G/VVS2) produced by Shanghai Zhengshi Technology, in China.
Before that it was broken in August 2021 by a14.60-ct F/VVS2 grown by Ethereal Green Diamond, in Mumbai, India.
The record before that was held by a 12.75-ct F/VVS2, also grown by Shanghai Zhengshi.